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> > They are similar (identical?) to the Type 4 fresh-air fans I suspect. Would > that be only on Type 2s with a Type 4 engine? (Many T2s outside the USA > still had upright engines in the late 70s). > That's right, the snail fan is only on Type4 engined vans. It seems to come in two versions; one with a single outlet and a plastic y-piece to split the flow to the two sides, and one with twin outlets. I fitted one on my upright engine '76 van; it helped the flow a bit in traffic, but the heater ducts were in such a bad state I was fighting a losing battle. Someone had jacked the van under the rear crossmember and crushed the duct, repairing it with fibreglass. ------------------------------------------------------------------- Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe